摘要
以贵州锦屏县新化乡欧阳村农户油茶园油茶为试验对象,通过田间小区试验,考察不同氮、磷、钾配比对油茶生长发育的影响。结果表明:油茶叶片氮、磷、钾含量均随着氮、磷、钾肥施用量的增加而增加,施磷过高则抑制了锌吸收的效果;氮、磷、钾肥配合施用可明显提高油茶叶绿素含量、新生枝条数目和果实座果率,尤其是氮肥施用量的提高可明显增加油茶叶片叶绿素含量、新生枝条数量和座果率。单株施用尿素0.32～0.48kg、过磷酸钙0.64kg、氯化钾0.15～0.45kg可明显提高油茶的座果率;单株施用尿素0.16～0.32kg、过磷酸钙0.32～0.96kg、氯化钾0.30～0.45kg增产效果最佳;单株施用尿素0.16kg、过磷酸钙0.96kg、氯化钾0.45kg使得油茶含脂肪量增加最明显。
Using Oil-Tea Camellia grown in Ouyang village, Xinhua town, Jinping county as material, the effect of different nitrogen, phosphorus and potassium fertilizers on the growth and development of Oil-tea Ca- mellia were investigated by field plot experiment. The results showed that the content of N, P, K in Oil-tea Camellia leaf enhanced with the increase of fertilizer application. However, excessive P application inhibited Zinc absorption. Mixing application of N, P and K fertilizer was prone to elevated chlorophyll content, new shoot number and fruitsetting percentage. Particularly, combination of 0.32 - 0.48 kg urea, 0.64 kg Calcium superphosphate and 0.15 -0.45 kg potassium chloride per plant gave the best yield, and aplication of 0.16 kg urea, 0.96 kg calcium superphosphate and 0.45 kg potassium chloride in each plant was proven to be best for fat accumulation.
出处
《山地农业生物学报》
2013年第2期106-109,共4页
Journal of Mountain Agriculture and Biology
基金
贵州省农业攻关项目[黔科合NY字(2010)3067号]
关键词
油茶
氮磷钾配方施肥
农艺形状
产量
Oil-tea Camellia
N, P, K-fertilization
agronomic trait
yield
